Organ-pipe.



R. Y. BARROW.

OBGAN PIPE.

ArrLIouIox FILED JULY sa. 1m.

' 1,063,239, Patented June 3,1913.

renin e'rArne PATENT herren.

.ROBERT Y, BAEROWS, OF RUTHERFBD, NEW JERSEY, ASSIGNQR- Gl NEIALF TOGEORGE H. HARMAN, OF GLEN RDGE, NEVY JERSEY.

Application filed July 23.

To el@ whom t may confiera.'

Be it known that I, Ronnn'r Y. B mnowe, e citizen of the United States,.and n reeldent of Rutherford, in the county of Bergen and Stute of NewJersey, have invented :in Improvement. in Organ-Pipes, of whieh thefollowing description, in connection with the accompanying drawings, isa Speeilieetimi, like let-ters onthe drawings representingr lihe hisinvention relaties to the labial pines nf an orgzinvits object being theproduction of tones of great. power and harmonie richness reni pipes ofsmall seele, without the requirement of :l high pressure wind supply andthe attendent .necessity of an :n'lditionel bellows reservoir. liithoutreeouree to high wind pressure, nipe muy he mede to yield .fr greaterohnne ot' sound by increasing its Sme; that is, by Amaking itshorizontal Seeion greater in proportion to its lengt-h; hut? theimpression of power depends :is nach upon timbre or quality es uponwinnie or quantity ot' ounsl, it is: evident that, the de velopnient efthe 'overtones is ot' very greet importance. The large Scale pipe' is;however quite deficient in this respeot, the tone heilig much too pureto he pleasing.r

ln' pipes of ordinary scales the harmonie bridge need in various forms:tor man3' jle-(irs Ganges au entrained nir current to netnpon eeml'newith theV original wind sheet, modifying the i'lunlity of the tonewithont however increasing' the volume 'of sound. f

By ineens of the new labial pipe hereinafter described, und shown indetail in the aeeenipfniging dra.\\ings,.it is` possible to ohtziin witha wind pressure as low :is three or foin* inches, tenes that haveheretofore required e Very much greater pressure This new pipe which lcell the cnlliaphone differs from the usual labial organ pipe in that,in addition to the usual slitwhieh delivers the win-,l Sheet across themouth of the pipe, another, slit is provided parallel to the first slitanni conmiunieeting with the saine wind emily passage in the hloeli, itsobject heilig not onljff to add te the volume of sound het @also toprovide a meer-.e of inducing' and Controlling the production ofharmonie a'rertenes vastly snperier to therv elim-lied unf. the forme ofharmonie bridfe seninionly need for thie purpose. greet Specification ofLetters Patent,

Serial No. 711,621Y

is [he Control afforded hy this additional wind sheet that. both .slitshe :nude nineh wider than would he posvfihle in n pipe hziviz'jig :isingle elit, time prollueing a. iene not only ot'. greet power hut ot'e5:- treinelyv rich and brilliant timbre. lt is ohvionS that this pipewill require n very copione supply of wind and that a, 'foot of.' amplebore must he provided. This invention may beilpplied to all varieties oflahiel pipes, metal or wood, stopped (covered) or open, of any seele,having one mouth, or two, and whether blown :it high pressure or low.Owing to the extreme intenssity of the air vibration, open pipes of thiskind should he tuned by ineens of zin adjustable slimjle or slifellilnewl over n. Slot in a side et the pipe :it the upper end, and nothy means of u shade applied to the top.

The drawings .show an openwood pipe about fl feet in length', pitch (l,the width. heine' 2 inehes und the depth 2j, inches., the mouth being;-,hree sevenths its width in heifYht.

lignre l is :i front elevation, Fig. a, longitiulinnl section, and,Figi', 3 n transsfeiw Section nt. :uu-y in Fig. Q.

ln what follow/3, the alii, of the 'pipe may he eensidered as divided,or the pipe may he oonsirl'irei'l :is heim' provided with an additionaldit parallel -to 'the nnlin slit. For purposei ot description, thehitter View will he adopted.

ln the drmvingge, the principal slit. is denoted by u and thesupplementel slit by which ie directly in front of and parallel with themein slit. The two slits are Senn rated hy n member e which isperforated, e shown at f, the perforation heine` indicated in l bybroken lines. Air under preseure enters the foot (f and from theehinnher e in the block y; is delivered to the slits a andsinrultgnneousl)Y und from them direeted across the mouth 7i. The upperlip 'i is ent quite sharp and the cavity j in the Crip /if extends thefull internal width of the pipe indicated by the hrollen lines in l? fl.

e teutien should he given to the -a'oieing of the improved pipe in orderto the heet reeulte, though tl is is ot' course of :all pipes. Fewepe/in directions gli.' n for this purpeee; ent it 'may he neefnl to fll Fig. il eepeeially to 1rittenwhereA the Supplemental or enter slit l?will be seen to be directed inwardly or in underv such wise relativelyto the other slit, as to mouth. cause the tWo emerging,lr wind sheets tomeet 3. A labial organ pipe having the air slightly in front of andabout on a level passage which forms the Wind sheet cut with the edge ofthe lip. An organ builder partly in the block and ,part-ly in the capwill vary this to suit himself or any given and provided with aseparat-ing member case, .as no absolute rule can be given. placedbet-Ween the cap and the block and I claim as my invention: A lperforated to allow air to enter the passage 1. A labial organ pipehaving means to l in the cap from that in the block. vdivide its slitfrom end to endso that it l In testimony whereof, I have may dischargethe air across the mouth in l name to this speoication, in the presencetwo parallel sheets, and1 means to supply i of two subscribingWitnesses. air under pressure simu taneously to both p f divisions ofthe slit. ROELM L BARRQWS" 2. A labial organ pipe having one mouth,lVitnesses: one wind inlet, and two parallel discharge i" D. B. DODGE,openings for delivering two sheets of air l Jos. E. COSTELLO.

pressure simultaneously across the signed vmy y

